Using this glass gluing clamp is a breeze. First, make sure the glass surfaces are clean and dry. Attach the clamp to the glass sheets using the suction cups. Adjust the angle to your desired position between 45 and 270 degrees. You can use the measurement system to ensure accuracy. When you're done with your gluing project, simply remove the clamp from the glass. As for maintenance, clean the suction cups and the clamp body regularly with a soft cloth. Store it in a dry place to prevent rust and damage. Always handle the clamp with care to avoid any accidental drops or impacts that could affect its performance.